class_docstr: Tests for repulsion matrix
docstr: Test that repulsion_tensor returns the correct matrix when no differentiable parameter
  is used.
docstr_tok: ["Test","that","repulsion_tensor","returns","the","correct","matrix","when","no","differentiable","parameter","is","used","."]
code: def test_repulsion_tensor_nodiff(self, symbols, geometry, e_ref):
      r"""Test that repulsion_tensor returns the correct matrix when no differentiable parameter
      is used."""
      mol = qchem.Molecule(symbols, geometry)
      e = qchem.repulsion_tensor(mol.basis_set)()
      assert np.allclose(e, e_ref)
  
imports: import pytest
  import pennylane
  from pennylane import numpy
  from pennylane import qchem
label_desc: Use image node_id 2 for calling the TestRepulsionMat obj's underlying member method code with example usage: obj.test_repulsion_tensor_nodiff(symbols, geometry, e_ref) without return types